DE102018219099A1 - System and method for printing a prefabricated component with an additively producible object - Google Patents

Abstract

The invention relates to a 3D printing system (12) for printing a construction surface (11) of a prefabricated component (1) with at least one additively producible object (8, 9), comprising at least one 3D printer (13) and at least one 3D Scanner (14). In order to simplify the printing of the finished component (1) with an additively producible object (8, 9), the 3D printing system (12) has at least one marking element (6, 7, 15) that can be arranged on the construction surface (11) has at least one identification property which can be detected by means of the 3D scanner (14) or another sensor unit of the 3D printing system (12), at least one database (16) in which a 3D printing data packet relating to the object (8, 9) assigned to the identification property, and at least one electronic unit (17) connected to the 3D printer (13), the 3D scanner (14) on the one hand or the sensor unit and the database (16), which is set up, from the database (16) to select the 3D printing data packet associated with the detected identification property and the selected 3D printing data packet when generating a tool path of a print suitable for additive manufacturing of the object (8, 9) on the finished component (1) tool (18) of the 3D printer (13).

Description

The invention relates to a 3D printing system for printing a construction surface of a prefabricated component with at least one additively producible object, comprising at least one 3D printer and at least one 3D scanner. Furthermore, the invention relates to a method for printing a construction surface of a prefabricated component with at least one additively producible object.

It is known to print a prefabricated component using a 3D printing technique with an additively producible object, as described, for example, in the link http://www.sciencedirect.com/science/article/pii/S2405896316322765?viewFull text = true available publication is described.

Such techniques use 3D scanning techniques to generate a data point cloud on a scanned object. The data point cloud is then reworked in order to obtain a data network which is then used in a software program for superimposing objects and for generating a tool path of a printer tool of a 3D printer that is suitable for additive manufacturing of the respective object on the finished component. An unknown component can first be inserted into a 3D printer and fixed there. The unknown component in the 3D printer can then be scanned using a 3D scanner. A data point cloud can then be generated from scan data from the scanning process. Then the data point cloud can be overlaid with data on the object to be manufactured additively on the component. From this data overlay, a tool path of a printer tool of the 3D printer suitable for additive manufacturing of the object on the component can be generated. Finally, the additive manufacturing of the object can be carried out on the previously unknown component.

A disadvantage of the above-described methods is that in order to carry out the superimposition of the data point cloud on the finished component with data on the object to be produced additively on the finished component, users need to have extensive CAD knowledge, which is neither user-friendly nor intuitive operation of 3D printing System enables.

The US 9 776 364 B2 discloses a method for instructing a 3D printing system that includes a 3D printer with a print coordinate system for printing at least one first object onto an existing second object. The method includes providing or receiving at least one image that represents at least a portion of the existing second object, determining or receiving an alignment between at least a portion of the at least one first object and at least a portion of the existing second object, and determining a position of the existing second object relative to the print coordinate system according to the at least one image. The position and orientation for the 3D printer are provided to the 3D printing system in order to print at least a part of the at least one first object in accordance with the position and the orientation on the existing second object.

The JP 2016 124 287 A (or its machine translation) discloses a 3D printing device for printing a second object on a first object. The device has a body, a 3D printer part, a detection part, a storage part, a control part, and a transfer plate. The storage part stores an initial coordinate corresponding to an initial printing position of the 3D printer part. The transfer plate is positioned on a bottom of the body and has a mark. The first object is configured to be able to be positioned on the transfer plate. The detection part detects a first height of the first object to the transfer plate. The control part prints the second object on the first object in accordance with the height and initial coordinate by controlling the 3D printer part.

The US 2017/0 066 198 A1 discloses a method of printing a base object to create a three-dimensional product. An illustration of a three-dimensional physical object as a base object and an illustration of a three-dimensional physical object as a product are obtained, which can be produced by adding material layers on the base object. A representation of a support structure configured to maintain the base object position within an additive manufacturing device is determined, and the support structure is manufactured using an additive manufacturing process.

The US 8,294,958 B2 discloses a scanner system for scanning an object. The system has a scanner device, a target independent of the object and a processor, the scanner device being a hand-held device. The scanner device has an emitter for projecting a light pattern onto the object and a sensor for capturing images of the object, the target having predetermined geometric features which are visible to the sensor simultaneously with the object, the processor being designed, to determine the position of the sensor with respect to the object, the processor being designed, in use, to generate geometric data based on the images of the object with the light pattern projected thereon by the emitter, said data being three-dimensional Include model of the object. The scanner device also has a light source for the directional illumination of the object. The sensor is designed to acquire photometric images of the object illuminated by the light source, and the processor is designed to generate a set of photometric images for the object when it is illuminated from different directions by the light source. The processor is designed, in use, to combine the geometric data, the set of photometric images and the position of the sensor with respect to the object for each photometric image through a correction process to output a model that contains geometric information about the object together with photometric information that are spatially registered with the geometric information.

The US 2017/0 272 726 A1 discloses using one or more marked markers in a projector module of a 3D camera to facilitate automatic calibration of a depth detection process of the camera.

The invention has for its object to simplify the printing of a finished component with an additively producible object.

According to the invention, the object is achieved by a 3D printing system having the features of claim 1, which has at least one marking element which can be arranged on the building surface and which has at least one identification property which can be detected by means of the 3D scanner or another sensor unit of the 3D printing system, at least one database in which a 3D printing data packet is stored assigned to the object of the identification property and has at least one electronic unit connected to the 3D printer, the 3D scanner on the one hand or the sensor unit on the other hand and the database, which is set up to select from the database the 3D printing data packet assigned to the identified identification property and to take the selected 3D printing data packet into account when generating a tool path of a printer tool of the 3D printer suitable for additive manufacturing of the object on the finished component.

It should be pointed out that the features and measures listed individually in the description below can be combined with one another in any technically meaningful manner and show further refinements of the invention. The description additionally characterizes and specifies the invention, in particular in connection with the figures.

In order to use the 3D printing system according to the invention to print a finished component, that is to say an already existing component with an initially unknown shape, with an additively producible object, a user of the 3D printing system can first attach the marking element to the finished component, for example non-destructively, namely at that point of the prefabricated component at which the object is later to be manufactured additively. The marking element can be attached to the finished component outside the 3D printer or inside the 3D printer, that is to say on the finished component placed in the 3D printer. Depending on the design of the marking element and / or the prefabricated component, the marking element can, for example, be integrally connected to the prefabricated component or simply rest on the prefabricated component or magnetically adhere to the prefabricated component.

The finished component provided with the marking element can then be scanned with the 3D scanner, for example using laser triangulation, a 3D camera system, in particular time-of-flight cameras, or the like. The shape of the prefabricated component is recorded and is thereby known to the 3D printing system. At the same time, the position of the marking element relative to the finished component is recorded.

By scanning the prefabricated component provided with the marking element, the identification property of the marking element can also be detected by means of the 3D scanner. Alternatively, the identification property with regard to the scanning process can be recorded beforehand, simultaneously or subsequently by means of another sensor unit of the 3D printing system. This can be the case, for example, if the identification property of the marking element cannot be detected by optical means. For example, the identification property can be a magnetic property of the marking element that can be detected with the other sensor unit.

The electronic unit is set up to receive an identification signal corresponding to the identification property from the 3D scanner or the other sensor unit and to access the database in order to find the 3D print data packet associated with the respectively identified identification property in the database and this for further use according to the invention to select. A large number of different assignments can be stored in the database, each of which uniquely assigns a specific identification property to a specific 3D printing data packet.

As soon as the electronics unit has selected the 3D printing data package assigned to the respectively identified identification property, the electronics unit generates a tool path of the printer tool of the 3D printer that is suitable for additive manufacturing of the respective object on the finished component, taking into account the selected 3D printing data package. A user of the 3D printing system therefore does not have to overlay scan data or a data point cloud with further data in order to produce a data overlay from which the tool path can be generated. The user therefore does not have to have CAD knowledge in order to be able to operate the 3D printing system according to the invention. This greatly simplifies the printing of the finished component with an additively producible object for the user.

The 3D printing system according to the invention can also have two or more marking elements, which can differ from one another in particular with regard to the respective identification property. Different identification properties can be realized, for example, by different color coding of the marking elements that can be optically detected, in particular by means of the 3D scanner or the other sensor unit of the 3D printing system, which is optically designed for this purpose and has, for example, at least one camera. Alternatively, an identification property can be contained, for example, in an electromagnetic radio signal of an RFID transponder integrated in the marking element, which can be called up or recorded with the other sensor unit of the 3D printing system.

The building surface of the prefabricated component serves to progressively build up the additively producible object on the prefabricated component, that is to say as the basis for this additive manufacturing. The building surface can be flat or uneven.

The additively producible object can, for example, form a holding element or a fixing element on the prefabricated component. Two or more additively producible objects can also be correspondingly formed on the finished component using the 3D printing system according to the invention.

According to an advantageous embodiment, the electronics unit is set up to control the 3D scanner for scanning the finished component together with the marking element arranged thereon, to generate a data point cloud from scan data of the 3D scanner, to detect a position of the marking element relative to the finished component and the selected 3D -Combine print data packet at the position of the marking element with the data point cloud or a data network derived therefrom. As a result, the electronic unit can automatically arrange the 3D printing data packet of the object at the position of the marking element, so that the user of the 3D printing system does not have to carry out this arrangement or a corresponding overlay of the data point cloud with the 3D printing data packet , which is accompanied by a simplification of the printing of the prefabricated component with the object.

Another advantageous embodiment provides that the 3D scanner is structurally integrated in the 3D printer. As a result, the 3D printing system can be made compact and the 3D scanner is protected within the 3D printer.

According to a further advantageous embodiment, the 3D printer has at least one device for preventing a collision during the additive manufacturing of the object between the printer tool on the one hand and the object and the finished component on the other. This ensures that the printing process runs properly. In addition, damage to the printer tool and / or the finished component and / or the object can be reliably prevented. The device can, for example, have a height sensor and / or a laser or camera-based system with which the position of the printer tool relative to the finished component and the object can be detected or monitored.

According to a further advantageous embodiment, the identification property is a physical property relating to an external shape of the marking element, an electromagnetic property and / or a magnetic property of the marking element. A physical property relating to the external shape of the marking element is a property of the shape of the marking element. An electromagnetic property of the marking element can be realized, for example, by an electromagnetic radio signal from an RFID transponder integrated in the marking element. A magnetic property of the marking element can be realized, for example, by integrating a permanent magnet into the marking element.

A further advantageous embodiment provides that the 3D printing system has at least one display unit connected to the electronics unit and at least one camera for capturing the finished component together with the marking element arranged thereon, the electronics unit being set up to control the display unit in such a way that the Display unit displays the image recorded by the camera with the object virtually arranged on the prefabricated component. This allows a computer-assisted expansion of reality are displayed in order to show the user in advance what the product that can be produced by printing on the finished component with the respective object will look like. This enables a visual check by the user before the finished component is printed on. The display unit can be, for example, a monitor, a smartphone, a tablet computer or video glasses.

The above object is further achieved by a method having the features of claim 7, which has at least the following steps: introducing a prefabricated component into a 3D printer; Arranging at least one marking element, which has at least one identifiable identification information, on the building surface; Scanning the finished component together with the marking element arranged thereon; Generating a data point cloud from scan data generated during scanning; Determining a position of the marking element relative to the finished component; Detecting the identification information of the marking element; Selecting a 3D printing data packet associated with the detected identification property from a database; and taking into account the selected 3D printing data packet when generating a tool path of a printer tool of the 3D printer that is suitable for additive manufacturing of the object on the finished component.

The advantages associated with the 3D printing system are correspondingly associated with the method. In particular, the 3D printing system can be used in accordance with one of the above-mentioned configurations or a combination of at least two of these configurations to carry out the method.

The finished component can be fixed there after it has been introduced into the 3D printer. The marking element can be attached to the finished component before or after the introduction of the finished component into the 3D printer. It is also possible to attach two or more marking elements, in particular with regard to their respective identification properties, to the finished component. The position of the marking element relative to the finished component can be determined from the scan data. The identification property of the marking element can be determined from the scan data or from data acquired with another sensor unit. As soon as the tool path of the printer tool has been created, the printing of the finished component with the object can be carried out.

According to an advantageous embodiment, the selected 3D printing data packet is combined with the data point cloud or a data network derived therefrom at the position of the marking element. The advantages mentioned above with reference to the corresponding configuration of the 3D printing system are correspondingly connected to this configuration. The combination of the selected 3D printing data packet with the data point cloud can be achieved by overlaying the data point cloud with the selected 3D printing data packet.

A further advantageous embodiment provides that a collision between the printer tool on the one hand and the object and the finished component on the other hand is prevented by means of optical monitoring during the additive manufacturing of the object. The advantages mentioned above with reference to the corresponding configuration of the 3D printing system are correspondingly connected to this configuration.

According to a further advantageous embodiment, the finished component arranged in the 3D printer is recorded together with the marking element arranged thereon by means of at least one camera and the finished component together with the object virtually arranged thereon is displayed by means of a display unit. The advantages mentioned above with reference to the corresponding configuration of the 3D printing system are correspondingly connected to this configuration.

According to a further advantageous embodiment, the marking element remains on the finished component or it is removed from the finished component before the additive manufacturing of the object. In the first alternative, the marking element is integrated into the product to be manufactured. In the second alternative, the marking element is not integrated into the product to be manufactured and can thus be reused, for example.

Suitable and only examples mentioned are the design of vehicle brackets / fasteners for manufacturing or prototype development.

• 1 eine schematische und perspektivische Darstellung eines Ausführungsbeispiels für ein Fertigbauteil mit zwei daran angeordneten Markierungselementen,
• 2 eine schematische und perspektivische Darstellung eines aus einer Datenpunktwolke erzeugten Datennetzes des in 1 gezeigten Fertigbauteils mit daran angeordneten Markierungselementen,
• 3 eine schematische Darstellung eines Magnetfeldscans des in 1 gezeigten Fertigbauteils mit daran angeordneten Markierungselementen,
• 4 schematische und perspektivische Darstellungen von Ausführungsbeispielen für an dem Fertigbauteil ausbildbare Objekte,
• 5 eine schematische und perspektivische Darstellung eines mit einem erfindungsgemäßen Verfahren hergestellten Produkts,
• 6 eine schematische Darstellung eines Ausführungsbeispiels für ein erfindungsgemäßes 3D-Druck-System und
• 7 ein Ablaufdiagramm eines Ausführungsbeispiels für ein erfindungsgemäßes Verfahren.

Further advantageous embodiments of the invention are disclosed in the subclaims and the following description of the figures. Show it

• 1 2 shows a schematic and perspective illustration of an exemplary embodiment of a prefabricated component with two marking elements arranged thereon,
• 2nd is a schematic and perspective view of a data network generated from a data point cloud in 1 shown prefabricated component with marking elements arranged thereon,
• 3rd a schematic representation of a magnetic field scan of the in 1 shown prefabricated component with marking elements arranged thereon,
• 4th schematic and perspective representations of exemplary embodiments for objects that can be formed on the finished component,
• 5 2 shows a schematic and perspective illustration of a product produced using a method according to the invention,
• 6 a schematic representation of an embodiment of a 3D printing system according to the invention and
• 7 a flowchart of an embodiment for a method according to the invention.

In the different figures, the same parts are always provided with the same reference numerals, which is why they are usually only described once.

1 shows a schematic and perspective view of an embodiment of a prefabricated component 1 with two on a building surface 11 of the prefabricated component 1 arranged marking elements 2nd and 3rd . The marking elements 2nd and 3rd are circular cylindrical and in those places of the prefabricated component 1 arranged on which later the in 5 objects shown are to be manufactured additively. The prefabricated component 1 is at least partially ferromagnetic. Every marker element 2nd respectively. 3rd has a permanent magnet, not shown, whose magnetic field has a detectable identification property of the marking element 2nd respectively. 3rd forms. The marking elements 2nd respectively. 3rd point in 1 the numbers only as an example 1 and 2nd on.

2nd shows a schematic and perspective representation of a data network generated from a data point cloud 4th of in 1 shown prefabricated component with marking elements arranged thereon. The data network 4th contains the positions of the marking elements relative to the finished component. The data network has been generated from a data point cloud which has been derived from scan data of a 3D scanner, not shown, with which the in 1 shown prefabricated component has been scanned with the marking elements arranged thereon.

3rd shows a schematic representation of a magnetic field scan 5 of in 1 shown prefabricated component with marking elements arranged thereon. The marking elements are by crosses 6 and 7 indicated, which can be colored differently according to their respective identification properties. The different colors are shown in the figures by means of different hatching.

4th shows schematic and perspective representations of exemplary embodiments for objects that can be formed on the finished component 8th and 9 . The object 8th is that in 3rd shown cross 6 assigned, which means that the object 8th Corresponding 3D printing data package in a database, not shown, by coloring the cross 6 indicated identification property of an in 1 shown marking element is assigned. The marker element 8th is essentially cuboid. The object 9 is that in 3rd shown cross 7 assigned, which means that the object 9 Corresponding 3D printing data package in the database, not shown, by coloring the cross 7 indicated identification property of an in 1 shown marking element is assigned. The marker element 9 is essentially circular cylindrical.

5 shows a schematic and perspective view of a product produced by a method according to the invention 10th . On the prefabricated part 1 are the two objects 8th and 9 has been manufactured additively.

6 shows a schematic representation of an exemplary embodiment of a 3D printing system 11 according to the invention for printing a construction surface, not shown, of a prefabricated component, not shown, with at least one additively producible object, not shown. The finished component and the object can be according to the 1 to 5 shown embodiment may be formed.

The 3D printing system 12th instructs a 3D printer 13 and a structurally in the 3D printer 13 integrates 3D scanner 14 on.

Furthermore, the 3D printing system 12th at least one marking element that can be arranged on the building surface 15 on the at least one using the 3D scanner 14 or a different sensor unit of the 3D printing system, not shown 12th has detectable identification property. The identification property can be an external shape of the marking element 15 physical property in question, an electromagnetic property and / or a magnetic property of the marking element 15 be.

In addition, the 3D printing system 12th a database 16 in which a 3D printing data packet is stored assigned to the object of the identification property. In the database 16 several corresponding assignments can be stored assign a specific identification property to a specific 3D printing data packet.

The 3D printing system 12th assigns one with the 3D printer 13 , the 3D scanner 14 on the one hand or the other sensor unit on the other hand and the database 16 connected electronics unit 17th on. The electronics unit 17th is set up from the database 16 to select the 3D printing data packet associated with the identified identification property and the selected 3D printing data packet when generating a tool path of a printer tool suitable for additive manufacturing of the object on the finished component 18th of the 3D printer 13 to consider.

Furthermore, the electronics unit 17th set up the 3D scanner 14 to scan the finished component together with the marking element arranged thereon, from scan data of the 3D scanner 14 generate a data point cloud, detect a position of the marking element relative to the finished component and combine the selected 3D printing data packet at the position of the marking element with the data point cloud. The electronics unit 17th can also be set up to generate a data network from the data point cloud.

The 3D printer 13 can at least one device, not shown, for preventing a collision during the additive manufacturing of the object between the printer tool 18th on the one hand and the object and the finished component on the other.

Furthermore, the 3D printing system 12th one with the electronics unit 17th connected display unit 19th and a camera 20th to capture the finished component together with the marking element arranged thereon, the electronics unit 17th is set up, the display unit 19th to be controlled such that the display unit 19th that from the camera 20th displays the recorded image with the object virtually arranged on the prefabricated component.

7 shows a flow chart of an embodiment for a method according to the invention 100 for printing a construction surface, not shown, of a prefabricated component, not shown, with at least one additively producible object, not shown.

In step 101 the finished component is brought into a 3D printer, not shown. In step 101 the finished component can also be fixed in the 3D printer. In addition, in step 101 at least one marking element, not shown, which has at least one identifiable identification information, is attached to the building surface, the marking element being attached to the prefabricated component before or after the prefabricated component has been introduced into the 3D printer.

In step 102 the finished component is scanned together with the marking element arranged thereon. In step 102 identification information of the marking element is also recorded.

In step 103 a data point cloud is generated from scan data generated during scanning. Furthermore, in step 103 a data network is generated from the data point cloud. In addition, in step 103 a position of the marking element is determined relative to the finished component.

In step 104 a 3D printing data packet assigned to the detected identification property is selected from a database. The selected 3D printing data package is in step 104 combined with the data point cloud at the position of the marking element. In step 104 the finished component arranged in the 3D printer can be captured together with the marking element arranged thereon by means of at least one camera (not shown) and the finished component together with the object virtually arranged thereon can be displayed by means of a display unit.

In step 105 the selected 3D printing data packet is taken into account when generating a tool path, suitable for additive manufacturing of the object on the finished component, of a printer tool of the 3D printer, not shown.

In step 106 the object is manufactured additively on the finished component. During the additive manufacturing of the object, a collision between the printer tool on the one hand and the object and the finished component on the other hand is prevented by means of optical monitoring. The marking element can remain on the finished component during the additive manufacturing of the object or can be removed from the finished component before the additive manufacturing of the object.

Reference symbol list

1

Prefabricated component

2nd

Marker element

3rd

Marker element

4th

Data network

5

Magnetic field scan

6

cross

7

cross

8th

object

9

object

10th

product

11

Building surface

12

system

13

3D printer

14

3D scanner

15

Marker element

16

Database

17th

Electronics unit

18th

Printer tool

19th

Display unit

20th

camera

100

method

101

Procedural step

102

Procedural step

103

Procedural step

104

Procedural step

105

Procedural step

106

Procedural step

QUOTES INCLUDE IN THE DESCRIPTION

This list of documents listed by the applicant has been generated automatically and is only included for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent literature cited

• US 9776364 B2 [0005]
• JP 2016124287 A [0006]
• US 2017/0066198 A1 [0007]
• US 8294958 B2 [0008]
• US 2017/0272726 A1 [0009]

Claims (11)

3D printing system (12) for printing a construction surface (11) of a prefabricated component (1) with at least one additively producible object (8, 9), comprising at least one 3D printer (13) and at least one 3D scanner (14) , characterized by - at least one marking element (6, 7, 15) which can be arranged on the construction surface (11) and which has at least one identification property which can be detected by means of the 3D scanner (14) or another sensor unit of the 3D printing system (12), - at least one database (16), in which a 3D printing data packet for the object (8, 9) associated with the identification property is stored, and - at least one with the 3D printer (13), the 3D scanner (14) on the one hand or the sensor unit on the other hand and the electronic unit (17) connected to the database (16), which is set up to select from the database (16) the 3D printing data packet associated with the identified identification property and the selected 3D printing data packet when generating a tool path of a printer tool (18) of the 3D printer (13) suitable for additive manufacturing of the object (8, 9) on the finished component (1). 3D printing system (12) Claim 1 , characterized in that the electronic unit (17) is set up to control the 3D scanner (14) for scanning the finished component (1) together with the marking element (6, 7, 15) arranged thereon, from scan data of the 3D scanner (14 ) to generate a data point cloud, to detect a position of the marking element (6, 7, 15) relative to the finished component (1) and to select the selected 3D printing data packet at the position of the marking element (6, 7, 15) with the data point cloud or to combine a derived data network. 3D printing system (12) Claim 1 or 2nd , characterized in that the 3D scanner (14) is structurally integrated in the 3D printer (13). 3D printing system (12) according to one of the preceding claims, characterized in that the 3D printer (13) has at least one device for preventing a collision during the additive manufacturing of the object (8, 9) between the printer tool (18) on the one hand and the object (8, 9) and the finished component (1) on the other. 3D printing system (12) according to one of the preceding claims, characterized in that the identification property is a physical property relating to an external shape of the marking element (6, 7, 15), an electromagnetic property and / or a magnetic property of the marking element (6 , 7, 15). 3D printing system (12) according to one of the preceding claims, characterized by at least one display unit (19) connected to the electronics unit (17) and at least one camera (20) for detecting the prefabricated component (1) together with the marking element arranged thereon ( 6, 7, 15), the electronics unit (17) being set up to control the display unit (19) in such a way that the display unit (19) contains the image recorded by the camera (20) with the object virtually arranged on the finished component (1) (8, 9) displays. Method for printing a construction surface (11) of a prefabricated component (1) with at least one additively producible object (8, 9), in particular with a 3D printing system (12) according to one of the preceding claims, characterized by at least the steps: - introduction a prefabricated component (1) in a 3D printer (13); - arranging at least one marking element (6, 7, 15), which has at least one identifiable identification information, on the building surface (11); - Scanning the finished component (1) together with the marking element (6, 7, 15) arranged thereon; Generating a data point cloud from scan data generated during the scanning; - determining a position of the marking element (6, 7, 15) relative to the prefabricated component (1); - detecting the identification information of the marking element (6, 7, 15); - Selecting a 3D printing data packet associated with the detected identification property from a database (16); and - taking into account the selected 3D printing data packet when generating a tool path of a printer tool (18) of the 3D printer (13) suitable for additive manufacturing of the object (8, 9) on the finished component (1). Procedure according to Claim 7 , characterized in that the selected 3D printing data packet is combined at the position of the marking element (6, 7, 13) with the data point cloud or a data network derived therefrom. Procedure according to Claim 7 or 8th , characterized in that during the additive manufacturing of the object (8, 9) a collision between the printer tool (18) on the one hand and the object (8, 9) and the finished component (1) on the other hand is prevented by means of optical monitoring. Procedure according to one of the Claims 7 to 9 , characterized in that the finished component (1) arranged in the 3D printer (13) is recorded together with the marking element (6, 7, 15) arranged thereon by means of at least one camera (20) and the finished component (1) together with the object (8, 9) arranged virtually thereon is displayed by means of a display unit (19). Procedure according to one of the Claims 7 to 10th , characterized in that the marking element (6, 7, 15) remains on the finished component (1) or is removed from the finished component (1) before the additive manufacturing of the object (8, 9).

Images